Home / 18,421.40-25,421.37-10,037.90

Finding the Fourth Proportional to 18,421.40, 25,421.37 and 10,037.90

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Solution

The fourth proportional to 18,421.40, 25,421.37 and 10,037.90 is: 13,852.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,421.40 : 25,421.37 = 10,037.90 : x
  2. Step 2: Convert to fraction form
    18,421.40/25,421.37 = 10,037.90/x
  3. Step 3: Cross multiply
    18,421.40x = 25,421.37 × 10,037.90
  4. Step 4: Simplify right side
    18,421.40x = 255,177,169.92
  5. Step 5: Solve for x
    x = 255,177,169.92/18,421.40
  6. Step 6: Final answer
    x = 13,852.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.